Automatic cut-off for gas.



L. a H. SCHMIDT.

AUTOMATIG CUT-OFF FOR GAS.

AR. 5, 1909A APPLE Eazente May 18, 1909.

2 SHEETS--SHEET 2.

LUPWG' SCMDT .HERBERT SCHMIDT, OF- KAISERSWERTH, GERMANY.

A'UMATG GUT-OFF FOR GAS.

Speeicetion of .Letters Patent.

Patented Mey is, reos.

Aspirazione slee March e, ieee. serial. No. 48;,e2e.

sii whom t2 may conservi.' "Be it known that We, Lmvio SCHMIDT end irinnnnn'r Sonmn'r, both living in the temi of Kaiserswerth, Gerinsny, have invented eertein new end useful improvements in Automatic Cut-Offs ier Ges, oi which the following' is e speoiiioetion.

The invention relates to en arrangement in gsseondiiits, for oiosing seid conduit if the ges-pressure she-uid happen to become so low thst the deines mey extinguish or that en erpiosion meybeeorne possible.

The eeeoinpanying drawing shows two speei'le iorms of this new invention.

Figure 1 shows in section and partly in eievetion one forni of executing the invention and Fig. 2 the seeond form.. Fig. 3 is a seetionuoi Fig. 2 on iine B.

The arrangement, shown in Fig. 1 eon` siste two chambers or reoeivers 2 end 3, iiiied vrithe. Fluid uA to the l'illing-pipe 1 Whieh een he" olosedi Receiver 3 een be eiosed gastight b'lv ineens of the' @over 4. pipe 5 goes to t ie reeeiver 3 for the purpose of' letting in ses and s pipe allows the ges to escape. 'he reeeiver .2 is likewise eiosed by means of s cover, this letter however not being eiietvight. in the receiver 3 there ie a tica-ter 7 having e hole in its center, this iioeter being provided with e valve The Weight of the seid Adoet-er together' with that ef the valve is just greet enough to hee the ioater immersed in the 'Huid to its surihee. Within the reeeiver 2 there is s hoster 9, having e hole'in its center, through which hoie e hanged pipe 10 pesses, et the iower end of Whieh the Weight 11 is fastened, previded with the gesplieelr-ring and serving es valve. ed s pipe i2, leeding directly into the re oeiver 3, Whereas within, the receiver 2 it leeds into t. speeinl chamber 13. This chamber 13 has in its upper port an open pipe 14 which nnry be closed by ineens of the valve 11, and in its side pert said chamber 13 has another. pipe 15, in which a return-vulve 16, opened toward the interior the ohnmber, is provided. The pins 17 and 18, tightened by ineens of stuing-boxes, go through the bottom of both receivers, said pins being hinged to o. lever 19-19l. This lever, being pivoted'ut- 20, has on its erin 19 e Weight 21, Whereas the other arm 19a is moi/ably oonneeted with the rod 23, this latter being provided with a nose 22. Above the nose 22 there is n springing erm 24 and et the side The receivers 2 and 3 are oonneot-A of this, there is an eleet1'o-inngnet 25. The receiver 3 is connected by means of n. pipe 27 with another U shaped pi` e 28, inode of nonA- conducting materiel. fiile pipe 28 filled With quick silver` up to n certain height and Connected with en electric l'fmttery Above the quick silver there is e. oontert 121325 Within the receiver, this Contact being con nested with the dentro-magnet 25 und the buttery 29. A switchboard 30 and un eleo- .tric'bell 31 maybe inserted in the rlrrtrir iine. By the side of the pipe 2S there is :ur other pipe 32 filled with quick silver or the like, having the same shape es the iirst one end being in the same manner connected with the electro-magnet and the battery. into this pipe, n pipeS disehsrges, going 'to the so-cn led didusion-ohember Si romposed of Clay or other porous materiel.

The Whole arrangement :rots es follows; The gas, enteringT the receiver S through the pipe 5 tries to displace it part of the fluid, according to its pressure. he iiuid, trying to go to the pipe 6, finds its Way barred up by the ilooter 7 with its valve 8 and the Way, leading to the receiver 2, is closed by the valves l1 and 16. For operating the apparrr-tus, it is necessary to lot the fluid ,eo the wey to 2. is pulled at its erin 151 so i'nr downward that the pin 17 of the lever-erin 19 pushes under the vulve 11 lifting the sume :t litt-lo. hr-n the liuid can go oil' through 14 in 2 and eend, so that the Hoster tl, risingl tog-ether With the Huid, holds the vulve l1 suspended over 14, by .means oi" the flange. 'lhen in the receiver 3 tl e fluid is allowed to sinh', in'dueneed by the gas enteringthe pipe 5, so that the Hoster 7, sinkingT together with the `fluid, and its vulve 3, lrzrves open the opening" of the esoz'rpe-pipe. 6, allowing' the to ,go tojfthe di'orent points where it is wanted. Il li'hen n reduction of the gus pressure orours or it there be no gas pressure ,et all, the Huid goes beek from 2 to 3 by wey olt l-1 and 15 und through both 14 and 15 till the valve 11 closes the pipe 1.4, seid valve 11 being -erranged in such n way that it closes the entry 14 before the level of the lluids in both receivers has reached.- the same height. 'The remainder of the fluid goes only by wsj oi 15 to 3, till liquids ere on o level. When the [luid rises the ioeter 7 rises likewise and the valve 8 is put `before the opening or the escape )ipe G, interrupting` the pesssge of the gus tiil the valve l1 is lifted again by mens For this purpose the lover 1i) 10 i ietore, by the lt the risen up to the contact 28a hereby) the erin 124-.

Wl, released. .ce of its oni ,y the ,-ir in consec.

ore., up,

oi the pin 153 the f" by Ineens e to closed, independent of the l luide rising in thev time the .elect-rie eiver it the suine bcn is set in motion and ai pl on the switchboard, announcing; the danger. li it iin the room, wher ber 34 is arranged, i consequence of c pipe va. vc left open, this gas, 'ilusion clnunber, goes o one side ot the eine 32, pre

s accumulo-ting in through. the pipe seing down net '.25 und;

'o with its erm n its sent, so tout the pipo (j is;

:tte falls down being` broken or e, accumulating 1n the 'y echec? e the diilusion choin- 2 ferent rooms und coup the Quicksilver in seme and pressing the ouicltsilverrpw rd 1n the other leg. lf then s to the Contact 32a, the scribed,

fer rise in the saune Way as de ie quichecuit is closed sefl, causing the plete on the switc *is and the bell to ring. The orin shown in posed of :t casing, which prac vided into two chambers 7'bt woll. Choinber'? is prov 1e inlet-pipe T hi lotte con be closed by ineens ol" the nl te 3.9), being provided with n checkring; un l fastened to the spring 38. rlhe spring fastened to the erin Ll0, which is connected iirnily through both chambers. :in englcdever 42 43 one rin ol' which is held tust by ineens oi the latch when the valve is open. The

2 und 3 is conm The shalt 41 ig anche?, The vulve 39 is closed by or; ting; the elcctrwnmgijnot 25. tVo-nmgnet 2.3, 'when excited, rclee lutch 44 and thereby the arni 412, so that lover can bc turned by n. springl oi the spring boing assisted by the other magnet-pole, :ittructi i3. By turning the lever. the sl with the erin 4() is turned iu such :t wey, that the valve S) is ses the attracted und the valve S f bboard ticully is dif 'end 37 by ineens ided l .5 and the escape pipe l to o shatt- 1 passing:

Within the clminbenl6,

y on its end :t piece? of iron, l

rfhis eleci the 1515., the action the torce of i the arm mit e1 and l right till the ln order to open the d et the end ot the easing, is turned to the lever eroi 4.2 catches behind the The circuit is closed es de- 1 by ineens or" e U ning Quicksilver or the .a connected by e. pipe ocr with the ges-piping. Eimitly as in forno. 1, rliiiusion-chentber 3% is provided, being connected, by means of pipe, With e. secornY s. 1U shaped onlie 32 or the like continuing Quicksilver or the 1l-e,so that the electric circuit is c the pipe 5 is barred. vulve, the swivel, fostene shaft 41 outside the tsip'pet 4l. scribed in forni No. sh pod pipo 2S, conto-i like, the pine 27 bein `with clmnibcr 3" losed when is accuniulx-rting in the rooms.

instead ot arranging one (infusion cheniber, es represented in the drawing, there may be u greet many them, installed in the dit led in quantity; in this ble to announce gets accumulations, even if they occur in rooms fer itwoy. The sviitchboord giving Ithe clarin the gas piping is closed, pieventing any further escupe of ges.

Having thus ful end in Whitt manner formed, what we. claim liet-ters Patent, is:

1. ln an automatic cutoff for gas, it ges chamber having e gas inlet and o ges outlet, L valve controlling the outlet, an electr@ 'magnet controlling seid valve, e first electric contact and e. second electric contact in circuit with seid electromagnet, means for closing; the lirst contact upon the decrease of pressure Within the gos chamber, fr diiusion chamber, and ineens for closing the second Contact upon the entrance of ges into the ditusion chamber.

2. ln en automa gus chambers, a gas inlet communicating with one of l valve controlling the ges out in each of the ges chambers, one of said floats being connected to the valve, while tlie other floot eeutrols communication between the chfunbers, en electrornognet having-an ermature which is operatively connected to the ontfrcts in cir- Wey it is possi ly described our invention the seine 1s to be per.-

enu Wish to secure by tic cutoff for gas, e pair of and a ges outlet said chambers, e let, n float Withons outlet vulve, und e unir of c cuit with. the electroinzignet. i

4ljUlTNlG SCHMIDT. (L. S.} ,HERBERT SCHMXDT. L. el

litnesses:

OTTO home, PAUL SCHMIDT. 

